● Active Type 1 · Individual

DR. Gregg Gordon Gerasimon, MD

Internal Medicine·San Antonio, TX· NPI 1265592570 · Enumerated 2006 · 19 years on NPI

Gerasimon is 1 of 25 internal medicine providers in San Antonio and 1 of 309 in Texas.

NPI age

19 years

Enumerated 2006-12-11

Primary specialty

Internal Medicine

Plus 1 subspecialty

Licensed in

1 state

Status

Active

No deactivations on record

Last NPPES update

2014-05-02

Source: monthly bulk 2026-05

Sole proprietor

May be part of a larger org

How this provider compares

Across 309 active internal medicine providers in Texas.

NPI age

19 years

≈ at median (18 yr)

State licenses

1 state

20% of peers hold multiple states

Subspecialties

In the 72% of peers with subspecialties

NPI lifetime · 2006 → 2026

2006-12Enumerated in NPPES

2006 2026

Where they practice

Practice location

3551 Roger Brooke Dr, San Antonio Military Medical Center

San Antonio, TX 782344504

📞 2109163839

Mailing address

3551 Roger Brooke Dr, San Antonio Military Medical Center

San Antonio, TX 782344504

📞 2109163839

Specialties

Allopathic & Osteopathic Physicians › Internal Medicine

Internal Medicine Primary

A field of special interest within the subspecialty of cardiovascular disease, specialty of Internal Medicine, which involves intricate technical procedures to evaluate heart rhythms and determine appropriate treatment for them.

TX license #P8585 taxonomy 207RC0001X
Internal Medicine

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

TX license #P8585 taxonomy 207RC0000X

Practice context

Part of a multi-provider practice. 365 other active providers share this practice address in NPPES.

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How to verify this provider

Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
Check the state license is currently active.State licensing boards publish current status; NPPES does not.
Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.